package com.itheima.service;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.constant.MessageConstant;
import com.itheima.dao.MemberDao;
import com.itheima.dao.OrderDao;
import com.itheima.dao.OrderSettingDao;
import com.itheima.entity.Result;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderSetting;
import com.itheima.utils.DateUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;
import java.util.Map;

@Transactional
@Service(interfaceClass = OrderService.class)
public class OrderServiceImpl implements OrderService {
    @Autowired
    private OrderDao orderDao;//体检预约信息dao层
    @Autowired
    private MemberDao memberDao;//会员dao层
    @Autowired
    private OrderSettingDao orderSettingDao;//预约设置dao层

    @Override
    //预约体检
    public Result order(Map map) throws Exception {
        // 1、检查用户所选择的预约日期是否已经提前进行了预约设置，如果没有设置则无法进行预约
        Date orderDate = DateUtils.parseString2Date((String) map.get("orderDate"));
        OrderSetting orderSetting = orderSettingDao.findByOrderDate(orderDate);
        if (orderSetting == null) {
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }
        //2、检查用户所选择的预约日期是否已经约满，如果已经约满则无法预约
        int number = orderSetting.getNumber();//可预约人数
        int reservations = orderSetting.getReservations();//已预约人数
        if (number <= reservations) {
            return new Result(false, MessageConstant.ORDER_FULL);
        }
        //3、检查用户是否重复预约（同一个用户在同一天预约了同一个套餐），如果是重复预约则无法完成再次预约
        //4、检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注册并进行预约
        String telephone = (String) map.get("telephone");
        //通过手机号查询是否是会员
        Member member = memberDao.findByTelephone(telephone);
        //是会员
        if (member != null) {
            //获取会员id
            Integer memberId = member.getId();
            //获取体检套餐id
            String setmealId = (String) map.get("setmealId");
            //封装会员id，体检套餐id，预约时间到
            Order order = new Order(memberId, orderDate, null, null, Integer.parseInt(setmealId));
            //查询是否重复预约
            List<Order> orderList = orderDao.findByCondition(order);
            //判断是否重复预约（不等于null说明已经存在）
            if (orderList != null || orderList.size() > 0) {
                return new Result(false, MessageConstant.HAS_ORDERED);
            }
        } else {
            //封装用户信息
            member = new Member();
            member.setName((String) map.get("name"));
            member.setSex((String) map.get("sex"));
            member.setIdCard((String) map.get("idCard"));
            member.setPhoneNumber((String) map.get("telephone"));
            member.setRegTime(new Date());
            //添加用户信息
            memberDao.add(member);
        }
        //5、预约成功，更新当日的已预约人数
        //可以预约，预约人数+1
        orderSetting.setReservations(orderSetting.getReservations() + 1);
        orderSettingDao.editReservationsByOrderDate(orderSetting);
        //封装体检预约信息
        Order order = new Order(member.getId(), orderDate, (String) map.get("orderType"), Order.ORDERSTATUS_NO, Integer.parseInt((String)map.get("setmealId")));
        //添加体检预约信息
        orderDao.add(order);
        return new Result(true, MessageConstant.ORDER_SUCCESS, order.getId());
    }

    @Override
    public Map findById(Integer id) throws Exception {
        Map map=orderDao.findById4Detail(id);
        if(map!=null){
            //处理日期格式Object->Date
            Date date = (Date) map.get("orderDate");
            //Date->String,并存入map
            map.put("orderDate",DateUtils.parseDate2String(date));
        }
        return map;
    }
}
